Linear taper split to single coils with humbuckers, splitting to the slugs in the bridge gets closer to the neck or farther from the bridge giving a warmer sweeter bridge tone, and splitting to the screws for a nice single coilish bell-like neck tone, then middle position with both split is a really excellent tone too, the linear pot sweep allows for more fine-tuning.

What's the difference between audio taper and linear taper ?
Audio taper changes in a logarithmic manner (curved), while linear is a direct line (1-10, 1=10%, 2=20%, 5=50%, and so on). Depending on the usage, a linear potentiometer can change the sound in what sounds like an uneven manner (little change through 50%, some from 50-70%, most apparent change from 70-100%). An audio taper makes this sound more even as you change the setting. It really depends on what purpose (tone vs volume, etc) and how you want it to respond that determines which one you would use.

Specification:
Material: Metal
Color:Gold
Full Resistance: 500k ohm
Shaft Length: 18 mm/0.71 in
Shaft Diameter: 6.5 mm/0.26 in
Whole Length: 43.5 mm/1.71 in
Base Diameter: 16 mm/0.63 in